Performance of mode-biased wavefront sensor to detect multiple aberration modes

We investigated the performance of mode-biased wavefront sensor(MWFS) to detect aberration including multiple modes. Two important parameters, Sensitivity and dynamic range, were chosen as criterions to evaluate the performance of the MWFS. We describe the tested wavefront as the superposition of several aberration modes, and considered it in three situations, in which the tested wavefront including: (a) only identical modes,(b) only relevant aberration modes,(c) only irrelevant aberration modes , relative to the biased ones. We show that the existence of the above three types of aberration modes in the tested wavefront greatly impacts the detection performance of the MWFS in terms of the sensitivity and dynamic range.